PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A6689.902.366O-Ring

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 5331-01-546-8211 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-546-8211 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-546-8211. Primary manufacturer part number: A6689.902.366.
Features
  • O-Ring — FSC 5331
  • Material Document and Classification: MIL-R-83248 TYPE 1,CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Center Hole Diameter: 0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
  • 4 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-546-8211, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-546-8211
Primary Part NumberA6689.902.366
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Material Document and ClassificationMIL-R-83248 TYPE 1,CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE
MaterialRUBBER FLUOROCARBON CLASS FPM
Center Hole Diameter0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
Cross-Sectional Height0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5331-01-266-2505A6689.902.366 INTERCHANGEABLE
O-Ring
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5331-01-269-3738 INTERCHANGEABLE
O-Ring
5330-01-355-3155 INTERCHANGEABLE
Packing,preformed
Cross-Reference Index
Part NumberManufacturer
A6689.902.366 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
A6689.902.366CP Naval Inventory Control Point Mechanicsburg (USA)
8712 FIND NO.19CP Naval Inventory Control Point Mechanicsburg (USA)
8712 FIND NO.19 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
5331-01-266-2505INTERCHANGEABLE
O-RING
A6689.902.366
5331-01-269-3738INTERCHANGEABLE
O-RING
5330-01-355-3155INTERCHANGEABLE
PACKING,PREFORMED

Frequently Asked Questions

What is NSN 5331-01-546-8211?

NSN 5331-01-546-8211 is a O-Ring, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-546-8211?

NSN 5331-01-546-8211 has 4 cross-referenced part numbers: A6689.902.366 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), A6689.902.366CP (Naval Inventory Control Point Mechanicsburg), 8712 FIND NO.19CP (Naval Inventory Control Point Mechanicsburg), 8712 FIND NO.19 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 5331-01-546-8211?

There are 3 known substitutes for 5331-01-546-8211: 5331-01-266-2505, 5331-01-269-3738, 5330-01-355-3155. Verify interchangeability with system specifications before substitution.

What are the specifications of A6689.902.366?

Key specifications for A6689.902.366: Material Document and Classification: MIL-R-83248 TYPE 1,CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE; Material: RUBBER FLUOROCARBON CLASS FPM; Center Hole Diameter: 0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN; Cross-Sectional Height: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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